ypr0: Add kernel module to required support fm radio.

To support fm radio a kernel module was written. This module is added to
the patched firmware that loads Rockbox. It's pre-compiled but its source
archive provided.

The kernel module provides raw-access to the built-in si4709 radio chip.
Our existing si 47xx drivers can be re-used this way.

The module itself was written Lorenzo Miori, I only integrated it
into the tree.

Change-Id: I6205d28a505d57791eaeb627e6856b9a1eaeaeaa

utils/ypr0tools/README

@@ -10,3 +10,6 @@ After that, R0.ROM is patched and can load Rockbox.
 
 rockbox.sh is a script to put into rockbox.zip. It's a small loader script
 that sets stuff up.
+
+files/lib/modules/si4709.ko is a replacement kernel module for fm radio support,
+its source code is packaged in ./si4709.7z.

utils/ypr0tools/rockbox.sh

@@ -1,4 +1,3 @@
-#!/bin/sh
 ######################################################################
 #             __________               __   ___.
 #   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
@@ -44,6 +43,13 @@ echo "95" > /sys/devices/system/cpu/cpu0/cpufreq/ondemand/up_threshold
 mount --bind /mnt/media0/.rockbox /.rockbox
 mount --bind /mnt/media0/Playlists /Playlists
 
+# replace Samsung's si470x.ko with our si4709.ko to support fm radio
+if [ -e /lib/modules/si4709.ko ]
+then
+  rmmod /lib/modules/si470x.ko
+  insmod /lib/modules/si4709.ko
+fi
+
 MAINFILE="/mnt/media0/.rockbox/rockbox"
 MAINFILE_ARGV=''
 MAINFILE_REDIRECT='>/dev/null 2>&1'